Which of the following best describes desertification?
A) A natural process of succession that cycles from deserts to prairies to forests to deserts
B) The formation of dryland ecosystems in regions where temperatures have increased
C) The natural movement of deserts advancing into new regions due to shifts in wind direction
D) Often the result of topsoil erosion leading to a permanent reduction in productivity
Question 2
Smart-growth efforts are being used with great benefit to growing communities. Which one of the following is a principle of smart-growth?
A) To allow higher density populations, all available spaces in a town should be used for housing.
B) Expanding suburbs should have physical boundaries that limit further spread.
C) Expanding towns should carefully segregate commercial and residential buildings.
D) Existing stores and light industry must move outside of the town to free up space for housing.
The principle of faunal succession uses animal fossils to tell relative time.
Oil and Natural Gas Transportation
An example of Secondary Succession by stages
The process of urine formation.
Natural Capital versus GDP per Capita
Normal tympanic membrane with cone of light and process of malleus